<template>
<div id="root">
  <div class="todo-container">
    <div class="todo-wrap">
		<MyHeader :addTodo="addTodo"></MyHeader>		
		<MyList :todos="todos" :checkTodo="checkTodo" :deleteTodo="deleteTodo"/>
		<MyFooter :todos="todos" :checkAllTodo="checkAllTodo" :clearAllTodo="clearAllTodo"/>
    </div>
  </div>
</div>
</template>

<script>
    import MyHeader from './components/MyHeader'
    import MyList from './components/MyList'
    import MyFooter from './components/MyFooter'
	export default {
		name:'App',
		components:{ MyFooter,MyHeader,MyList },
		data(){
        	return{
        	    todos:JSON.parse(localStorage.getItem('todos'))||[]
        	}
       },
		methods: {
			addTodo(todoObj){
				// console.log('app接收到了：',todoObj);
				this.todos.unshift(todoObj)
			},
      checkTodo(id){
        this.todos.forEach((todo)=>{
          if(todo.id===id) todo.done = !todo.done
        })
      },
      deleteTodo(id){
        this.todos = this.todos.filter((todo)=>{
          return todo.id!==id
        })
      },
      checkAllTodo(done){
        this.todos.forEach((todo)=>{
          todo.done = done
        })
      },
      clearAllTodo(){
        this.todos = this.todos.filter(todo=>{
          return !todo.done
        })
      }
		},
    watch:{
      todos:{
        deep:true,
        handler(value){
        localStorage.setItem('todos',JSON.stringify(value))
        }
      }
    }
	}
</script>
<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
